Scattered strong to severe thunderstorms developed in northern Middle Tennessee during the afternoon hours on July 23, then moved southeast into the evening. Several reports of wind damage and one report of large hail were received.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OHX wrote it up.
Scattered strong to severe thunderstorms developed in northern Middle Tennessee during the afternoon hours on July 23, then moved southeast into the evening. Several reports of wind damage and one report of large hail were received.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Nashville, TN wrote its last area forecast discussion before the first event at Jul 23, 1:41 PM CST, 3 hours earlier.
Area Forecast Discussion National Weather Service Nashville TN 241 PM CDT Sun Jul 23 2017 .DISCUSSION... Another hot and humid afternoon is underway across Middle Tennessee. Throughout the morning and early afternoon hours, a couple of outflow boundaries and weak shortwaves have traversed the mid-state providing just enough lift to spark showers and a few thunderstorms. Nothing has been particularly strong, but the combination of rain and additional cloud cover has been enough to keep us from reaching into the mid to upper 90s this afternoon. Heat Index values have still reached triple digits in many places and with the heavier, more widespread rains not expected until the evening hours, the Heat Advisory is still warranted, so we will allow to to run its course and expire at 7 pm this evening. Regarding those upcoming evening storms, another stronger impulse is still expected to drop southward and spark more widespread activity after 6 pm this evening. There will still be plenty of instability to fuel convection, however, with the lack of shear, no organization is expected. This means clusters of thunderstorms will develop and push slowly southward across the area. The slow movement will provide moderate to heavy rainfall and an outside shot at some decent gusty winds. The bulk of the convection should begin to wane by 10 or 11 pm as we lose the heating of the day. Monday through Wednesday should be relatively quiet. Some afternoon storms are possible Monday afternoon closer to the Alabama state line as this will be where the best instability will reside. A stray thunderstorm won't be out of the question Tuesday and Wednesday afternoons. Of greater importance to everyone will be the afternoon highs, which are expected to fall back towards normal values. This means low 90s and with dew points expected to remain in the low 70s, it will still be hot and humid, but we should remain below Heat Advisory criteria. By late Thursday afternoon, under an admittedly unpredictable northwesterly flow, models are depicting the approaching of a mid- level disturbance that will bring showers and thunderstorms into the region. This activity is expected to linger into the overnight hours Thursday and most likely into Friday. Forecast soundings during this time frame suggest a little more shear with which to work, so some of these storms could become strong, especially Friday afternoon as the bulk of the energy approaches Middle Tennessee. Due to the northwesterly flow (and some model to model inconsistencies in timing), I'll refrain from adding in any strong wording to the Hazardous Weather Outlook for now, however, it may need to be added in subsequent forecasts. If there's good news in today's forecast package, it's that models are progging cooler temperatures next weekend. While the Euro holds onto rain into Saturday, Friday through Sunday's high temperatures look below normal. && .AVIATION... 18Z TAF DISCUSSION. Upper level impulse will approach from the northwest by late this afternoon. pva enhancement over the middle TN area will lead to an increase in shower and tstm activity by 00z. Will include vcts and prob 30's to cover the convection. Activity not quite expected to be widespread enough to warrant tempo. Rainfall chances will diminish after 06z with fog vsbys dropping to as low as 3-5sm late. Look for partial haze during the 12z-18z timeframe. && .PRELIMINARY POINT TEMPS/POPS... Nashville 75 91 74 91 73 / 50 20 10 10 10 Clarksville 73 89 72 89 71 / 40 20 10 10 10 Crossville 69 84 69 84 67 / 60 20 10 20 10 Columbia 73 89 73 89 71 / 50 30 20 20 10 Lawrenceburg 73 88 72 89 71 / 50 40 20 20 20 Waverly 73 89 72 90 72 / 50 20 10 20 10 && .OHX WATCHES/WARNINGS/ADVISORIES... Heat Advisory until 7 PM CDT this evening FOR Bedford-Cheatham- Davidson-Dickson-Giles-Hickman-Houston-Humphreys-Lawrence-Lewis- Macon-Marshall-Maury-Montgomery-Perry-Robertson-Rutherford-Smith- Stewart-Sumner-Trousdale-Wayne-Williamson-Wilson. && DISCUSSION......Unger AVIATION........21
Hazardous Weather Outlook National Weather Service Nashville TN 523 AM CDT Sun Jul 23 2017 TNZ005>011-023>034-056>066-075-077>080-093>095-241030- Stewart-Montgomery-Robertson-Sumner-Macon-Clay-Pickett-Houston- Humphreys-Dickson-Cheatham-Davidson-Wilson-Trousdale-Smith- Jackson-Putnam-Overton-Fentress-Perry-Hickman-Lewis-Williamson- Maury-Marshall-Rutherford-Cannon-De Kalb-White-Cumberland-Bedford- Coffee-Warren-Grundy-Van Buren-Wayne-Lawrence-Giles- 523 AM CDT Sun Jul 23 2017 This Hazardous Weather Outlook is for portions of Middle Tennessee. .DAY ONE...Today and Tonight Hot weather will continue today...and a Heat Advisory remains in effect for areas west of the Cumberland Plateau. Maximum afternoon heat index values will range from 100 to 106 degrees. In addition, scattered thunderstorms are expected to develop late today and tonight, especially in areas north of Interstate 40 and east of Interstate 65. A few of those storms could become strong to severe, with damaging winds, hail and heavy downpours. .DAYS TWO THROUGH SEVEN...Monday through Saturday Scattered thunderstorms will continue on Monday, as a weak cold front sags slowly into the Mid State. Most storms are expected to be over southern and eastern sections, and few storms along the northern Cumberland Plateau could become strong to severe, with damaging winds, hail and heavy downpours. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
Special Weather Statement
National Weather Service Nashville TN
502 PM CDT SUN JUL 23 2017
TNZ009-029-232230-
Trousdale TN-Macon TN-
502 PM CDT SUN JUL 23 2017
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MACON AND TROUSDALE
COUNTIES UNTIL 530 PM CDT...
At 502 PM CDT, Doppler radar was tracking a strong thunderstorm over
Hartsville, moving southeast at 10 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Hartsville.
LAT...LON 3647 8595 3643 8598 3640 8598 3638 8605
3633 8611 3629 8613 3633 8617 3632 8619
3634 8621 3634 8622 3635 8623 3634 8624
3637 8627 3651 8612
TIME...MOT...LOC 2202Z 313DEG 8KT 3639 8617
ShamburgerSpecial Weather Statement National Weather Service Nashville TN 526 PM CDT SUN JUL 23 2017 TNZ026-027-059-232300- Williamson TN-Davidson TN-Cheatham TN- 526 PM CDT SUN JUL 23 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DAVIDSON...NORTH CENTRAL WILLIAMSON AND SOUTHEASTERN CHEATHAM COUNTIES UNTIL 600 PM CDT... At 526 PM CDT, Doppler radar was tracking a strong thunderstorm near Bellevue, or 9 miles west of Nashville, moving southeast at 20 mph. Half inch hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Ashland City, Nashville, Forest Hills, Belle Meade, Kingston Springs, Pegram, Bellevue, Berry Hill, Beaman Park, Bells Bend and Natchez Trace At Highway 96. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3616 8711 3628 8695 3616 8672 3593 8702 TIME...MOT...LOC 2226Z 309DEG 19KT 3616 8695 10
Special Weather Statement National Weather Service Nashville TN 527 PM CDT SUN JUL 23 2017 TNZ028>030-232315- Wilson TN-Trousdale TN-Smith TN- 527 PM CDT SUN JUL 23 2017 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SMITH...NORTHEASTERN WILSON AND TROUSDALE COUNTIES UNTIL 615 PM CDT... At 527 PM CDT, Doppler radar was tracking a strong thunderstorm near Hartsville, moving southeast at 5 mph. Pea size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Hartsville, South Carthage, Pleasant Shade, Dickerson Chapel Recreation Area and Dixon Springs. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3631 8628 3644 8613 3641 8585 3614 8609 TIME...MOT...LOC 2227Z 304DEG 6KT 3634 8615 Shamburger
Special Weather Statement National Weather Service Nashville TN 537 PM CDT SUN JUL 23 2017 TNZ024-025-057-232315- Hickman TN-Dickson TN-Humphreys TN- 537 PM CDT SUN JUL 23 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DICKSON... SOUTHEASTERN HUMPHREYS AND NORTHERN HICKMAN COUNTIES UNTIL 615 PM CDT... At 536 PM CDT, Doppler radar was tracking a strong thunderstorm 10 miles east of Hurricane Mills, or 13 miles southeast of Waverly, moving southeast at 10 mph. Half inch hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Centerville, Lyles, Bon Aqua, Nunnelly, Pinewood and Bucksnort. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3595 8774 3606 8742 3590 8725 3574 8763 TIME...MOT...LOC 2236Z 317DEG 7KT 3596 8760 Whitehead
The Nashville radar (KOHX), 40 km away, was scanning. The volume nearest the first event began at 22:43 UTC.
5 thunderstorm wind, 1 hail. Local standard time, as filed.
A tSpotter Twitter report indicated a tree was blown down and blocked Sawyer Brown Road in Bellevue.
A tSpotter Twitter report indicated a large tree was blown down across Highway 70 in Rome.
A tSpotter Twitter report indicated trees were blown down with power outages in Popes Hill.
Facebook and tSpotter Twitter reports indicated a downburst caused wind damage across Gordonsville. A power pole was knocked down on Gordonsville Highway about a half mile north of I-40. Trees were blown down on Main Street and at Ivy Agee Park on Agee Drive, and a tree fell onto a car in the Ivy Agee neighborhood.
A Facebook report indicated trees were blown down across a roadway in Hickman.
Facebook photos showed hail up to quarter size fell in Watertown.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2017Every state in 2017This day in weather historyWarnings in Tennessee, July 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 702801, 702803, 702800, 702802, 702805, 702798.